Fix file lock after img:destroy() (#3367)

Author: TheNormalnij

Client/mods/deathmatch/logic/CClientIMG.cpp

@@ -28,6 +28,11 @@ CClientIMG::CClientIMG(class CClientManager* pManager, ElementID ID)
 CClientIMG::~CClientIMG()
 {
     m_pImgManager->RemoveFromList(this);
+    Unlink();
+}
+
+void CClientIMG::Unlink()
+{
     if (IsStreamed())
         StreamDisable();
 

Client/mods/deathmatch/logic/CClientIMG.h

@@ -50,7 +50,7 @@ class CClientIMG : public CClientEntity
     CClientIMG(class CClientManager* pManager, ElementID ID);
     ~CClientIMG();
 
-    void Unlink(){};
+    void Unlink();
     void GetPosition(CVector& vecPosition) const {};
     void SetPosition(const CVector& vecPosition){};